Three-dimensional flat-layer convection air-curing process for cigar tobacco leaves
Through the combination of three-dimensional flat layer convection drying process and lifting device, precise temperature control and humidity control of cigar tobacco leaves in different drying chambers is achieved, solving the problems of low drying efficiency and cumbersome manpower operations in the existing technology, and improving the drying efficiency and product quality.
Patent Information
- Application Number
- CN202510304353.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2025-04-25
AI Technical Summary
The existing cigar leaf drying process is inefficient, especially the mounting and charging of high-rise tobacco leaves is troublesome, and it consumes manpower and time.
The three-dimensional flat layer convection drying process is adopted, and the temperature and humidity are accurately controlled between multiple drying chambers through the lifting device. It is dried in different temperature zones according to the drying stage of cigar leaves, and the temperature and humidity are adjusted in real time through the flat layer convection system.
It improves the efficiency and accuracy of cigar tobacco leaf drying, reduces manpower operation, ensures the stability of the temperature and humidity of each drying cavity, and adapts to the natural temperature and humidity changes of cigar tobacco leaf at each stage.
Smart Images
Figure CN119867348A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of cigar drying, and in particular to a three-dimensional flat-layer convection drying process for cigar tobacco leaves. Background Art
[0002] At present, cigar tobacco leaves are usually cured by the air-curing method. The air-curing method is a cigar tobacco curing method in which the harvested tobacco leaves (or tobacco leaves harvested with stems) are placed under certain temperature, humidity and ventilation conditions (natural or artificially assisted), without direct sunlight, to slowly dry and change the chemical composition.
[0003] The curing of cigar tobacco leaves requires a certain temperature and humidity environment, so it must be done in a special room that can adjust the temperature, humidity and ventilation, which is the so-called curing air-drying room. The capacity, internal and external structure and internal shelf construction method of the curing air-drying room are different. This is related to the usage habits, production scale and environmental conditions of each cigar tobacco producing area. As long as it can meet the curing needs of different tobacco leaves. In some cigar tobacco producing areas, when the external environment is not suitable during the curing period, the air-drying room needs to be equipped with necessary ventilation, dehumidification and heating equipment;
[0004] The current cigar drying process usually requires 5-6 stages, and the drying time, drying temperature and humidity of each stage are different. In the prior art, the cigar tobacco leaves in the drying room are usually dried at a unified temperature, humidity and time, and then the cigar tobacco leaves are uniformly collected, and then new cigar tobacco leaves are mounted again. In order to improve the output and efficiency of drying, the drying room usually has a higher height. In the three-dimensional drying room, multiple layers of cigar tobacco leaves are usually hung. It is more troublesome to hang the higher layers of cigar tobacco leaves, and the mounting and collection are more labor-intensive and time-consuming. Therefore, a new cigar flow drying process that can improve the efficiency of cigar drying is urgently needed. Summary of the invention
[0005] The purpose of the present application is to provide a three-dimensional flat-layer convection drying process for cigar tobacco leaves, so as to solve the problem of low efficiency in the current drying of cigar tobacco leaves.
[0006] The technical solution of the present invention is: a three-dimensional flat-layer convection drying process for cigar tobacco leaves, characterized in that it includes the following steps:
[0007] A lifting device is arranged in the cigar drying chamber, and the lifting device can pass through a plurality of vertically connected drying chambers from bottom to top in sequence;
[0008] In the process of the lifting device carrying the cigar tobacco leaves through the plurality of the airing chambers in sequence, each of the airing chambers is configured with a different airing temperature zone according to the airing stage of the cigar tobacco leaves;
[0009] After the cigar tobacco leaves in the designated airing chamber have reached the airing time, the lifting device carries the cigar tobacco leaves to move to the next airing chamber, and configures an airing temperature zone for the next airing chamber that is different from that of the current airing chamber;
[0010] After the cigar tobacco leaves that have not met the airing time are moved to the next airing chamber, the airing temperature zone in the airing chamber where the cigar tobacco leaves that have not met the airing time are located is adjusted to be consistent with the previous airing temperature zone.
[0011] Preferably, the drying chamber includes, from bottom to top, a first drying chamber, a second drying chamber, a third drying chamber, a fourth drying chamber and a fifth drying chamber;
[0012] The air-drying temperature zones include a first temperature zone, a second temperature zone, a third temperature zone, a fourth temperature zone and a fifth temperature zone;
[0013] After the cigar tobacco leaves meet the drying time at the temperature and humidity of the fifth temperature zone, they are moved out of the cigar drying chamber through the fifth drying chamber.
[0014] Preferably, after the cigar tobacco leaves in the designated drying chamber are dried in the current drying temperature zone for a preset time, the current drying temperature zone is adjusted to a transition temperature zone, and after the drying time of the cigar tobacco leaves in the current stage is met, the transition temperature zone is adjusted to the drying temperature zone for the next drying stage.
[0015] Preferably, after the cigar tobacco leaves are dried in the first drying chamber at the first temperature zone for a first time T1, the lifting device carries the cigar tobacco leaves and moves them to the second temperature zone;
[0016] After the cigar tobacco leaves are air-dried in the second air-drying chamber at the second temperature zone for a second time T2, the lifting device carries the cigar tobacco leaves and moves to the third air-drying chamber;
[0017] After the cigar tobacco leaves in the first airing chamber are aired in the first temperature zone for T1 time, the first airing chamber adjusts the first temperature zone to the second temperature zone.
[0018] Preferably, after the cigar tobacco leaves are air-dried in the third temperature zone in the third air-drying chamber for a third time T3, the lifting device carries the cigar tobacco leaves and moves them to the fourth air-drying chamber;
[0019] After the cigar tobacco leaves in the second air-drying chamber are air-dried in the second temperature zone for a time period of T2-(T2-T1), the second air-drying chamber adjusts the second temperature zone to the third temperature zone.
[0020] Preferably, after the cigar tobacco leaves are dried in the fourth temperature zone for T4 time in the fourth drying chamber, the lifting device carries the cigar tobacco leaves and moves them to the fifth drying chamber;
[0021] After the cigar tobacco leaves in the third air-drying chamber are air-dried in the third temperature zone for a time period of T3-(T3-(T2-(T2-T1))), the third air-drying chamber adjusts the third temperature zone to the fourth temperature zone.
[0022] Preferably, the cigar tobacco leaves are air-dried in the fifth air-drying chamber at the fifth temperature zone for T5 time, and then the air-drying is completed;
[0023] After the cigar tobacco leaves in the fourth air-conditioning cavity are aired in the fourth temperature zone for T4-(T4-(T3-(T3-(T2-(T2-T1)))))) time, the fourth temperature zone in the fourth air-conditioning cavity is adjusted to the fifth temperature zone, and after being aired in the fifth temperature zone for T5-(T4-(T4-(T3-(T3-(T2-(T2-T1))))))) days, the cigar tobacco leaves are moved to the fifth air-conditioning cavity, and after being aired in the fifth air-conditioning cavity for T5-(T5-(T4-(T4-(T3-(T3-(T2-(T2-T1))))))) days, the air-conditioning is completed.
[0024] Preferably, after the cigar tobacco leaves are lifted from any cigar airing cavity to the next airing cavity, the vacated airing cavity is replenished with cigar tobacco leaves.
[0025] Preferably, a flat convection system is respectively provided in the first drying chamber, the second drying chamber, the third drying chamber, the fourth drying chamber and the fifth drying chamber, each of the flat convection systems comprises a pair of side panels with ventilation conditions arranged in the drying chamber, and airflow can be conducted in the first drying chamber, the second drying chamber, the third drying chamber, the fourth drying chamber and the fifth drying chamber, respectively.
[0026] Compared with the prior art, the advantages of this application are:
[0027] (1) The three-dimensional flat-layer convection drying process for cigar tobacco provided in the present application can accurately control the temperature and humidity of cigar tobacco in the drying chamber in an up-and-down order based on the various stages of cigar tobacco drying, which conforms to the natural temperature and humidity change rules during the drying process of cigar tobacco.
[0028] (2) The lifting device accurately lifts the cigar leaves from one stage to the next stage according to the cigar leaf drying stage, and after the cigar leaves are lifted to the next stage, the system controls the temperature and humidity of the lifted cigar leaves to be accurately controlled according to the cigar drying stage.
[0029] (3) Since the temperature and humidity at each stage of cigar drying are different, when the lifting device uniformly lifts the tobacco leaves in the entire drying chamber, the cigar tobacco leaves in the current drying chamber can be provided with a temperature zone that meets the current drying stage in real time through 5 adjustable temperature zones, and through the flat convection process, the temperature and humidity in each drying chamber are guaranteed to be stable in real time.
[0030] (4) A lifting device is used to cyclically load and dry cigar leaves. There is no need to manually hang cigar leaves at a high place in the drying room. Cigar leaves only need to be hung in the first cavity to achieve the hanging of cigar leaves in the entire cavity, thereby improving work efficiency and ensuring safety.
[0031] (5) The three-dimensional flat-layer convection drying process for cigar tobacco leaves provided in the present application is not affected by the number of cigar tobacco leaves during the drying process. As long as the number requirement of a drying cavity is met, the drying process can be started, thus avoiding the waste of the drying cavity. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] The present application is further described below in conjunction with the accompanying drawings and embodiments:
[0033] Figure 1 The present invention is a schematic diagram of the process of a three-dimensional flat-layer convection drying process for cigar tobacco leaves. DETAILED DESCRIPTION
[0034] In order to make the purpose, technical scheme and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiment is only one embodiment of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0035] "Embodiment" referred to herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present application. In the description of the embodiment of the present application, it should be understood that the terms "first", "second" and "third" etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second" and "third" etc. may include one or more of the features explicitly or implicitly. Moreover, the terms "first", "second" and "third" etc. are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiment of the present application described here can be implemented in an order other than illustrated or described here. In addition, the terms "including" and "for" and any of their variations are intended to cover non-exclusive inclusions.
[0036] like Figure 1As shown, this example provides a three-dimensional flat-layer convection drying process for cigar tobacco leaves, including cigar drying equipment, which has multiple adjustable drying temperature zones. A lifting device is configured in the cigar drying equipment, and cigar tobacco leaves are carried in the lifting device and can be driven by the lifting device to move in multiple adjustable temperature zones.
[0037] Generally, the drying process of cigars includes several stages such as wilting stage, yellowing stage, browning stage, color fixing stage, and dry tendon stage. The drying time, drying temperature, and drying humidity required for each stage are all different. If the required temperature and humidity are not reached in the corresponding stage, the taste of the dried cigars will be compromised. Therefore, in this embodiment, a cigar drying system is used to achieve the effects of precise temperature control and convenient transmission during the drying process of cigar tobacco leaves, in conjunction with the five stages of the cigar drying process. In this embodiment, a first drying chamber, a second drying chamber, a third drying chamber, a fourth drying chamber, and a fifth drying chamber are arranged from bottom to top in the drying chamber. The five drying chambers are respectively configured with a first temperature zone, a second temperature zone, a third temperature zone, a fourth temperature zone, and a fifth temperature zone, and the temperature and humidity of each temperature zone in the drying chamber can be adjusted separately. A cigar drying process provided in this embodiment includes the following steps:
[0038] S1: a lifting device is arranged in the air-drying chamber, and the first batch of cigar tobacco leaves are hung in the lifting device. The lifting device carries the first batch of cigar tobacco leaves and places them in the first air-drying chamber, and air-drying the first batch of cigar tobacco leaves in the first temperature zone for the first time T1;
[0039] Specifically, the temperature of the first temperature zone in the first air-drying chamber is controlled at 28°C-30°C, the humidity is controlled at 85%-90%, and the air-drying time is 4 days. In the first temperature zone, the cigar tobacco leaves gradually change from green leaves to wilted leaves. The cigar air-drying system provided in this embodiment can accurately control the temperature and humidity of the cigar tobacco leaves in the first air-drying chamber. In this embodiment, the air-drying temperature, humidity and air-drying time of the first air-drying chamber can be set in the system, and the temperature and humidity are accurately controlled by a set of heating and humidification control equipment arranged in the cigar air-drying equipment.
[0040] S2: The lifting device carries the first batch of cigar tobacco leaves in the first airing chamber and lifts them to the second airing chamber, and airs them in the second temperature zone in the second airing chamber until the second time T2;
[0041] Specifically, the lifting device can smoothly lift the cigar tobacco leaves in the first air-conditioning chamber to the second air-conditioning chamber after completing the air-conditioning requirements of the withering period. The second air-conditioning chamber is located above the first air-conditioning chamber in the vertical direction. The temperature of the second temperature zone in the second air-conditioning chamber is controlled to be 29°C-33°C, and the humidity is controlled to be 85%-90%. The cigar tobacco leaves are aired in the second temperature zone in the second air-conditioning chamber for 6 days. In the second air-conditioning chamber, the cigar tobacco leaves gradually enter the yellowing period from the withering period, during which the green color of the tobacco leaves fades, and the tobacco leaves turn yellow and soften. Although the second temperature zone is connected to the first temperature zone in space, the temperature and humidity can be precisely controlled separately.
[0042] In another embodiment of the application, when the cigar leaves carried by the lifting device in the first drying chamber are about to complete the drying requirements of the withering period, the temperature of the first drying temperature zone is adjusted to be further close to but not equal to the second drying temperature zone. Specifically, if the temperature and humidity can be gradually adjusted and smoothly transitioned during the drying process of the cigar leaves, the taste of the drying will be better. In this embodiment, a transition temperature zone scheme is proposed, that is, after the cigar leaves in the designated drying chamber are dried in the current drying temperature zone for a preset time, the current drying temperature zone is adjusted to a transition temperature zone, and after the drying time of the cigar leaves in the current stage is met, the transition temperature zone is adjusted to the drying temperature zone of the next drying stage.
[0043] Taking the cigar tobacco leaves that are in the wilting period as an example, the cigar tobacco leaves are aired in the first temperature zone for 4 days in the wilting period. When the cigar airing system detects that the cigar tobacco leaves in the first temperature zone have been aired for 3 days and are close to completing the airing requirements of the wilting period, the first temperature zone is adjusted to a transition temperature zone. The temperature and humidity of the transition temperature zone are between the first temperature zone and the second temperature zone. Providing a transition temperature zone during the transition from the first temperature zone to the second temperature zone of the cigar tobacco leaves can make the airing process of the cigar tobacco leaves more in line with the law of natural temperature changes and have a better taste. After the transition temperature zone reaches the specified time, the lifting device carries the cigar tobacco leaves to move to the next airing chamber.
[0044] S3: The second batch of cigar tobacco leaves is added to the lifting device in the first airing chamber. After the second batch of cigar tobacco leaves are aired in the first airing chamber for T2 time, the first airing chamber is adjusted to the second temperature zone. After the second batch of cigar tobacco leaves are aired in the first airing chamber for T2-T1 time, they are carried by the lifting device into the second airing chamber;
[0045] Usually, the planting area of cigar tobacco leaves is not very large. Therefore, during the drying process, the entire drying cavity cannot be filled at the same time. If only a small part of the cigar tobacco leaves need to be dried, the entire cigar drying room must be started, resulting in a waste of energy. At the same time, when new cigar tobacco leaves are needed in the next stage, it is impossible to update and restart. In this embodiment, 5 drying cavities are used to independently disperse the cigar tobacco leaves in the 5 drying cavities. Each drying cavity can be dried separately. When new cigar tobacco leaves need to be dried, they only need to be moved from the cigar tobacco leaves in the current drying cavity to the next drying cavity through the lifting device to achieve the mounting of the new cigar tobacco leaves.
[0046] In this embodiment, the cigar tobacco leaves are aired in the first temperature zone in the first airing chamber for 4 days, and in the second temperature zone in the second airing chamber for 6 days. After the first batch of cigar tobacco leaves have been aired in the second airing chamber for 4 days, the airing temperature zone of the second batch of cigar tobacco leaves in the first airing chamber needs to be consistent with the airing temperature zone of the cigar tobacco leaves in the second airing chamber. The cigar airing system provided in this embodiment detects that the second batch of cigar tobacco leaves in the first airing chamber have been aired for 4 days, and adjusts the first temperature zone in the first airing chamber to the second temperature zone.
[0047] S4: the lifting device carries the first batch of cigar tobacco leaves in the second airing chamber to the third airing chamber, and airs the first batch of cigar tobacco leaves in the third airing chamber in the third temperature zone for a third time T3;
[0048] At this time, the first batch of cigar tobacco leaves are aired in the third temperature zone in the third airing chamber and gradually enter the browning stage. The surface of the tobacco leaves is yellowish brown to dark brown. The temperature of the third temperature zone is 34°C-36°C, and the humidity is 60%-85%. The first batch of cigar tobacco leaves are aired in the third temperature zone in the third airing chamber for 10 days. In this embodiment, in order to further improve the airing effect of cigar tobacco leaves, the third airing chamber is divided into two temperature zones for airing, which are respectively aired at a temperature of 34°C-36°C and a humidity of 80%-85% in the early stage of browning for 4 days, and then the humidity can be reduced to 60%-70% for airing for 6 days when entering the color fixing stage. The cigar tobacco leaves thus aired have a better taste.
[0049] S5: The lifting device carries the second batch of cigar tobacco leaves in the first air-drying chamber and lifts them to the second air-drying chamber, and air-dries them in the second temperature zone in the second air-drying chamber for a time period of T2-(T2-T1);
[0050] Since the second batch of cigar tobacco leaves currently in the second airing chamber have been aired in the first airing chamber at the second temperature zone for a period of (T2-T1), the time for which the second batch of cigar tobacco leaves currently entering the second airing chamber have been aired in the second temperature zone is T2-(T2-T1), and since the third airing chamber needs to be aired in the third temperature zone for 10 days, while the second batch of cigar tobacco leaves in the second airing chamber only needs to be aired in the second temperature zone for 4 days, after the cigar airing system of this embodiment detects that the second batch of cigar tobacco leaves in the second airing chamber have been aired in the second temperature zone for 4 days, the temperature zone in the second airing chamber is adjusted to the third temperature zone; the airing time for the second batch of cigar tobacco leaves in the second airing chamber at the third temperature zone is T3-(T2-(T2-T1)).
[0051] S6: The lifting device carries the first batch of cigar tobacco leaves from the third air-drying chamber to the fourth air-drying chamber, and air-drys them in the fourth temperature zone for a fourth time T4 in the fourth air-drying chamber;
[0052] Specifically, the first batch of cigar tobacco leaves gradually enter the color fixing period in the fourth temperature zone of the fourth air-drying chamber: the temperature of the fourth temperature zone is controlled at 38°C-40°C, the humidity is controlled at 30%-40%, and the air-drying time is 9 days. In the fourth temperature zone, the color of the first batch of cigar tobacco leaves gradually turns dark brown, the side veins are completely dry, and the main veins are dry to 70%;
[0053] S7: the lifting device carries the second batch of cigar tobacco leaves in the second air-drying chamber and lifts them to the third air-drying chamber. After air-drying them in the third temperature zone for a time period of T3-(T3-(T2-(T2-T1))) in the third air-drying chamber, the third temperature zone in the third air-drying chamber is adjusted to the fourth temperature zone;
[0054] At this time, the second batch of cigar tobacco leaves in the second drying chamber, after being dried in the third temperature zone for T3-(T2-(T2-T1)) time, enter the third drying chamber and continue to be dried in the third temperature zone in the third drying chamber. After detecting that the cigar tobacco leaves have been dried in the third temperature zone in the third drying chamber for T3-(T3-(T2-(T2-T1))) time, the cigar drying system adjusts the third temperature zone in the third drying chamber to the fourth temperature zone, and dries the cigar tobacco leaves in the third drying chamber for T4-(T3-(T3-(T2-(T2-T1)))) time.
[0055] S8: The lifting device carries the first batch of cigar tobacco leaves from the fourth air-drying chamber to the fifth air-drying chamber, and air-dries the cigar tobacco leaves in the fifth temperature zone for the fifth time T5, thereby completing the air-drying of the cigar tobacco leaves;
[0056] Specifically, the first batch of cigar tobacco leaves are aired in the fifth temperature zone in the fifth air-drying chamber and gradually enter the dry-tough stage. During the dry-tough stage, the main veins of the first batch of cigar tobacco leaves gradually dry out, the depressions turn black, and they are easy to break, meeting the requirements for shipment. The temperature in the fifth temperature zone is controlled at 42°C-45°C, the humidity is maintained at 15%-20%, and the air-drying time is 20 days.
[0057] S9: the lifting device carries the second batch of cigar tobacco leaves in the third air-drying chamber and lifts them to the fourth air-drying chamber. After air-drying them in the fourth air-drying chamber at the fourth temperature zone for T4-(T4-(T3-(T3-(T2-(T2-T1)))))), the fourth temperature zone in the fourth air-drying chamber is adjusted to the fifth temperature zone;
[0058] Specifically, the second batch of cigar tobacco leaves in the third drying chamber have been dried in the fourth temperature zone for T4-(T3-(T3-(T2-(T2-T1)))) time. Therefore, when entering the fourth drying chamber, the cigar drying system detects that the second batch of cigar tobacco leaves have been dried in the fourth temperature zone in the fourth drying chamber for T4-(T4-(T3-(T3-(T2-(T2-T1))))) time, and then adjusts the temperature zone in the fourth drying chamber to the fifth temperature zone, and after drying in the fourth drying chamber for T5-(T4-(T4-(T3-(T3-(T2-(T2-T1)))))) time, the cigar drying system is promoted to the fifth drying chamber, and completes drying in the fifth drying chamber. After the first batch of cigar tobacco leaves and the second batch of cigar tobacco leaves are dried in the fifth drying chamber, they are carried out of the cigar drying chamber by the lifting device. In this embodiment, after moving from one drying chamber to the next drying chamber, the first drying chamber will be supplemented with cigar tobacco leaves to be dried. The above method is used for cyclic drying, which greatly improves the drying efficiency.
[0059] By adopting the scheme provided in this embodiment, the cigar airing chamber is divided into multiple airing stages according to the airing stages of the cigar tobacco leaves, and the cigar tobacco leaves are carried into each airing chamber by a lifting device. At the same time, five airing temperature zones are respectively arranged in each airing chamber. The cigar tobacco leaves are aired in sequence in each airing chamber according to the temperature zones required for the airing stages of the cigar tobacco leaves, which well matches the airing conditions required for each stage of the cigar tobacco leaves. The airing temperature zones that were originally constant in the airing chamber are changed into airing temperature zones that can be adjusted separately in each airing chamber, and space is exchanged for time, and the traditional temperature time is converted into the length of the temperature zone. At the same time, the airing process of the cigar tobacco leaves is changed from node adjustment to gradual adjustment, and the adjustment method is more moderate and more suitable for the changes in tobacco leaf substances. The lifting device carries the cigar tobacco leaves from bottom to top for airing one by one, which conforms to the change process of the natural temperature and humidity of the cigar tobacco leaves.
Claims
1. A three-dimensional flat-layer convection drying process for cigar tobacco leaves, characterized in that: The following steps are involved: A lifting device is arranged in the cigar drying chamber, and the lifting device can pass through a plurality of drying chambers which are connected vertically from bottom to top in sequence; In the process of the lifting device carrying the cigar tobacco leaves through the plurality of the airing chambers in sequence, each of the airing chambers is configured with a different airing temperature zone according to the airing stage of the cigar tobacco leaves; After the cigar tobacco leaves in the designated airing chamber have reached the airing time, the lifting device carries the cigar tobacco leaves to move to the next airing chamber, and configures an airing temperature zone for the next airing chamber that is different from that of the current airing chamber; After the lifting device moves the cigar tobacco leaves that have not met the airing time to the next airing chamber, it adjusts the airing temperature zone in the airing chamber where the cigar tobacco leaves that have not met the airing time are located to be consistent with the previous airing temperature zone.
2. The three-dimensional flat-layer convection drying process for cigar tobacco leaves according to claim 1, characterized in that: After the airing temperature zone in the airing chamber where the cigar tobacco leaves that have not met the airing time are located is consistent with the previous airing temperature zone and meets the airing time of the previous airing temperature zone, the current airing temperature zone is adjusted to the next airing temperature zone in the cigar tobacco leaf airing stage.
3. The three-dimensional flat-layer convection drying process for cigar tobacco leaves according to claim 2, characterized in that: The drying chamber includes, from bottom to top, a first drying chamber, a second drying chamber, a third drying chamber, a fourth drying chamber and a fifth drying chamber; The air-drying temperature zones include a first temperature zone, a second temperature zone, a third temperature zone, a fourth temperature zone and a fifth temperature zone; After the cigar tobacco leaves meet the drying time at the temperature and humidity of the fifth temperature zone, they are moved out of the cigar drying chamber through the fifth drying chamber.
4. The three-dimensional flat-layer convection drying process for cigar tobacco leaves according to claim 3 is characterized in that: After the cigar tobacco leaves in the designated drying chamber are dried in the current drying temperature zone for a preset time, the current drying temperature zone is adjusted to a transition temperature zone, and after the drying time of the cigar tobacco leaves in the current stage is met, the transition temperature zone is adjusted to the drying temperature zone of the next drying stage.
5. The three-dimensional flat-layer convection drying process for cigar tobacco leaves according to claim 3 is characterized in that: After the first batch of cigar tobacco leaves are aired in the first airing chamber at the first temperature zone for a first time T1, the lifting device carries the first batch of cigar tobacco leaves and moves them to the second temperature zone; After the first batch of cigar tobacco leaves are air-dried in the second air-drying chamber at the second temperature zone for a second time T2, the lifting device carries the first batch of cigar tobacco leaves and moves them to the third air-drying chamber; After the second batch of cigar tobacco leaves in the first air-drying chamber are aired in the first temperature zone for T1 time, the first air-drying chamber adjusts the first temperature zone to the second temperature zone.
6. The three-dimensional flat-layer convection drying process for cigar tobacco leaves according to claim 5, characterized in that: After the first batch of cigar tobacco leaves are air-dried in the third temperature zone in the third air-drying chamber for a third time T3, the lifting device carries the first batch of cigar tobacco leaves and moves them to the fourth air-drying chamber; After the second batch of cigar tobacco leaves in the second air-drying chamber are air-dried in the second temperature zone for a time period of T2-(T2-T1), the second air-drying chamber adjusts the second temperature zone to the third temperature zone.
7. The three-dimensional flat-layer convection drying process for cigar tobacco leaves according to claim 6, characterized in that: After the first batch of cigar tobacco leaves are aired in the fourth temperature zone in the fourth airing chamber for a period of time T4, the lifting device carries the first batch of cigar tobacco leaves and moves them to the fifth airing chamber; After the second batch of cigar tobacco leaves in the third air-drying chamber are air-dried in the third temperature zone for a time period of T3-(T3-(T2-(T2-T1))) , the third air-drying chamber adjusts the third temperature zone to the fourth temperature zone.
8. The three-dimensional flat-layer convection drying process for cigar tobacco leaves according to claim 7, characterized in that: The first batch of cigar tobacco leaves are air-dried in the fifth air-drying chamber at the fifth temperature zone for T5 time, and then the air-drying is completed; After the second batch of cigar tobacco leaves in the fourth curing cavity are aired in the fourth temperature zone for T4-(T4-(T3-(T3-(T2-(T2-T1)))))) time, the fourth temperature zone in the fourth curing cavity is adjusted to the fifth temperature zone, and after being aired in the fifth temperature zone for T5-(T4-(T4-(T3-(T3-(T2-(T2-T1))))))) days, the leaves are moved to the fifth curing cavity, and after being aired in the fifth curing cavity for T5-(T5-(T4-(T4-(T3-(T3-(T2-(T2-T1))))))) days, the curing is completed.
9. The three-dimensional flat-layer convection drying process for cigar tobacco leaves according to claim 2, characterized in that: After the cigar tobacco leaves are lifted from any cigar airing cavity to the next airing cavity, the vacated airing cavity is replenished with cigar tobacco leaves.
10. The three-dimensional flat-layer convection drying process for cigar tobacco leaves according to claim 3, characterized in that: A flat convection system is respectively arranged in the first drying chamber, the second drying chamber, the third drying chamber, the fourth drying chamber and the fifth drying chamber, each of the flat convection systems comprises a pair of side panels with ventilation conditions arranged in the drying chamber, and airflow can be conducted in the first drying chamber, the second drying chamber, the third drying chamber, the fourth drying chamber and the fifth drying chamber respectively.